My brother was a champion debater in high school. However, one time he'd forgotten he had a match that weekend, and he winged it. Arrogant little prick that he is, he even made up a word, "estabinus," in his opening salvo. Incredibly, his opponent used it in the defense argument.

The entirety of my brother's rebuttal consisted of the sentence, "I made up the word 'estabinus.'" Son of a bitch won the match.